Puerto de Navacerrada
Puerto de Navacerrada is a high mountain pass at an elevation of 1.860m (6,102ft) above the sea level, located in the Sierra de Guadarrama, on the border of Castile and Leon and Madrid, in central Spain.
There are 3 roads to the summit, CL-601, M-601 and C-604, all of them asphalted, with some steep sections, up to 10.7%. At the summit there’s a ski station. The climb has been used by the Spanish Vuelta race. The first road over the summit was built in 1788. The road is in very good condition throughout. The road is very busy throughout the year.
There are several routes to reach the summit. The most used ones are starting from Alpedrete, the ascent is 17.72 km long. Over this distance, the elevation gain is 948 meters. The average percentage is 5.3 %. And starting from Collado Villalba, the ascent is 18.4km long. Over this distance, the elevation gain is 953 meters. The average percentage is 5.2 %.